Soft Start (required Powerhobby USB)Features:High performance standard digital servoBuilt-in magnetic sensorWaterproof IP67High precision steel gearHigh efficiency bruhless motorHigh strength dual ball bearingsFull CNC Aluminium hulls and structureIdeal for 1/10, 1/8 on road, off road, truck/carsProgrammable (required Powerhobby USB)Specifications:Operating Voltage: 4.8-8.4 VOperating speed: 0.125sec/60degree @ 6.0VOperating speed: 0.100sec/60degree @ 7.4VOperating speed: 0.087sec/60degree @ 8.4VStall Torque: 542 oz-in @ 6.0VStall Torque: 667 oz-in @ 7.4VStall Torque: 764 oz-in @ 8.4VSize: 40*20*37.2mm (1.57 x 0.78 x 1.46 in)Weight: 83gConnector Wire: JR 300 mmSpline: 25T